Nitrel
消石
🗣️ 情景例句
What are you talking about?
在说什么？
Keep thing seven years and you will find a use for it.
备而不用。
The real dividing line between continents and oceans occurs at the foot of a steeper slope.
大陆和海洋的真正分界线是在陡坡脚大陆架慢坡